Abstract: Provided is a producing method for a retardation film with a reverse wavelength dispersion property, which is highly reliable in terms of a small wavelength dispersion change and is low in display unevenness due to a position dependence of a retardation variation. The production method is designed for a retardation film which satisfies the following formulas (1) and (2): 0.7<Re1[450]/Re1[550]<0.97??(1); and 1.5×10?3<?n<6.0×10?3??(2) (where: Re1[450] and Re1[550] represent, respectively, in-plane retardation values thereof as measured by using light of a wavelengths of 450 nm and light of a wavelength of 550 nm, at 23° C.; and ?n represents an in-plane birefringence thereof as measured by using light of a wavelength of 550 nm).

Abstract: A roll of optical-film laminate that increases accuracy, speed and yield in the production of liquid-crystal display elements. The roll of optical film laminate is for use in an apparatus for continuously producing liquid-crystal display elements. The optical film comprises a polarizing composite film of a laminate having a continuous web of polarizer and a protective film superposed on one side of the continuous polarizer, an adhesive layer disposed on one side of the laminate; and a carrier film superposed on the adhesive layer of the polarizing film in a peelable state. Defective and normal regions in the polarizing film are determined. According to these determined regions, coded information that specifies positions of slit lines to be formed in the optical-film web are recorded on the continuous web.